A school is launching a project aimed at improving students' self-regulation skills. The aim is that students learn to concentrate better, to persevere in the face of adversity, and to use various strategies to achieve their goals. Over time, researchers find that the learning performance of the students improves on average. So the project appears to be a success. However, to their surprise, they also see that the students do not feel that their self-regulation skills have improved. The school management and the researchers are scratching their heads. What is going on here? A publication by Lira et al. (2022) offers an explanation.